I actually did not speak with the recruiter who reached out to me until late in the process. Usually there is a preliminary phone screening and that did not happen. I had a first interview with the engineering manager. This was not really technical, she asked mostly about my previous experiences. Once I got past that, I had a technical interview. I was told via email to study algorithm questions, so I did for 3 weeks. Then I had my interview and they asked me to build out a UI using React. I hadn't used React in a few years, so I stumbled through it, but go everything done that the interviewer asked. At the end, the interviewer told me "relax, you did great. Do you still want to work for Twitter." When I said yes, he told me what the next steps would be. Then after not hearing anything for 3 days, I got a generic rejection letter. I reached out to the recruiter saying I was confused because the interviewer mentioned me moving forward. The recruiter apologized for the mixup and said " I actually want you to interview for another team. Study React because the interview will def be in React." So I spent the weekend getting back up to speed in React. However the next interview did not ask me anything with React. The engineer asked me an algorithm question. I was thrown off and really could care less at this point. So I fumbled through the hour and was pretty irritated that I studied for weeks for them not really have their stuff together. I think the recruiter was trying to help, but in the end he hurt my chances. I would have spent the weekend continuing to study algorithms and data structures. I would never recommend anyone apply here based on the experience I had.